The U.S. National Weather Service issued Extreme Heat Warnings across northern Arizona from August 1 to August 4, 2026, with dangerously high temperatures ranging from 103 to 118 degrees Fahrenheit. Affected regions included Gila, Yavapai, Yuma, and La Paz counties, as well as tourist destinations like the Grand Canyon, Sedona, and Page.
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* WHAT...Dangerously hot conditions, with temperatures around 108 to 115 degrees expected below 4000 feet. * WHERE...Northern Gila and Yavapai counties below 4000 feet; including the Verde Valley and Black Canyon City. * WHEN...Until 8 PM MST Monday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged ou
this outlet adds: marble, glen, creek, page, sedona
this outlet adds: daytime, ranging, havasupai, gardens, phantom, ranch, lower, elevations
* WHAT...Temperatures of 100 to 106 degrees expected. * WHERE...Little Colorado River Valley and the lower elevations of Navajo Nation in Arizona; including the Kaibito Plateau, Painted Desert, and Chinle Valley. * WHEN...Until 8 PM MST /9 PM MDT/ Monday. * IMPACTS...Pets, livestock, and those sensitive to heat, such as the homeless, elderly, and children will be at risk for heat-related illnesses
* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 107 to 118. Major to Extreme Heat Risk. * WHERE...Mostly rural areas of Maricopa County and Northern Pinal County. * WHEN...Until 8 PM MST Tuesday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. * ADDITIONAL DETAILS...In Maricopa County, Cal
this outlet adds: southern, gila, portions, eastern, monday
this outlet adds: western, southern, imperial, valley, salton
this outlet adds: yuma, eastern, riverside, counties, colorado, river, valley
this outlet adds: chuckwalla, mountains, chocolate, chiriaco, summit, joshua, tree, monday
* WHAT...Dangerously hot conditions with temperatures 101 to 106 in Santa Cruz and Cochise counties and 107 to 112 elsewhere. Major to Extreme HeatRisk is expected. * WHERE...Eastern Cochise County below 5000 feet, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar